Fan end construction for furnaces



p 25. 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Shee c lw ZM 0% Sept. 25, 1956 H. HOSBEIN FAN END CONSTRUCTION FOR FURNACES 5Sheets-Sheet 2 Filed April 1, 1952 p 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 3(I I 5 Li 25' 1 hag/J M 03 69 p 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 4Sept. 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 5United States Patent Ill., assignor to M. H. De- Ill., a corporation ofDela- Louis H. Hosbein, Glencoe,

trick Company, Chicago, ware Application April 1, 1952, Serial No.279,796 7 Claims. (Cl. 110-99) My invention relates to furnace wallstructure, and more particularly to a fan end wall construction forfurnaces.

My invention relates particularly to a furnace wall construction inwhich the refractory members are exposed to high temperaturesencountered in furnaces and which are, preferably, sectionally supportedby means of a metallic framework, and particularly to a fan endconstruction in a furnace, in which the wall forming members aresectionally supported by means of a metallic framework, which is sorelated to the refractory wall forming members as to be remote from thehigh temperature zone in which the refractory wall forming members arelocated.

it is a particular purpose of my invention to provide a fan endconstruction of the above referred to character, in which refractorymembers are provided between the metallic framework and the refractorywall forming members in the form of refractory bracket members, soconstructed and arranged that the fan end portion of the furnace wallstructure has a rounding inner surface approaching a convex curve, thathas a much smaller radius than has been previously capable of beingattained in a structure in which refractory hanger members or bracketmembers are interposed between the metallic mounting means and the wallforming members that are exposed directly to the heat of the furnace.

In order to accomplish this purpose the refractory hanger or bracketmembers that connect the metallic structure with the wall formingmembers are mounted in horizontal rows in staggered relation so thatsaid refractory hanger members can be mounted at relatively small acuteangles to each other, to accomplish the desired sharpness in the turn ofthe wall at the corner portion or fan end, that would not otherwise bepossible with such refractory bracket or hanger members. The refractorybracket or hanger members have to have the necessary strength toproperly support the wall forming members and are preferably relativelynarrow or thin as compared with the wall forming members, and toaccomplish this are made, preferably, of the form of the refractoryhanger members disclosed in the patent to Louis H. Hosbein and LouisEllman, No. 2,387,663, patented October 23, 1945, on Furnace Arch orRoof Construction.

It is a specific purpose of my invention to provide a connectingrefractory wall structure providing a rounding corner between a pair ofrelatively angularly disposed refractory Walls, comprising refractoryhanger members and means for mounting said hanger members in staggeredrelation to each other, said hanger members supporting wall formingrefractories, each hanger member preferably supporting a plurality ofsuch wall forming refractories. While said connecting Wall structure mayhave various angular relationships and come within the spirit of myinvention, the preferred form of my invention provides a connectingrefractory wall structure or fan end structure providing such a roundingcorner between a vertical wall and a horizontal wall of a furnacestructure.

It is a further important purpose of my invention to provide a fan endconstruction for furnaces comprising horizontal rows of refractoryhanger members, the hanger members of each row extending at an obliqueangle to the members of an adjacent row and in staggered relationthereto, and wall forming refractories supported from said hangermembers, said refractory hanger members being mounted in ascendingrelation in said fan end from a bottom row of vertically extendinghanger members to a top row of horizontally extending hanger members,and to provide metallic bracket means or hangers for mounting saidrefractory hanger members on a metallic framework.

It is another important purpose of my invention to pro vide metallicbracket means for fan end constructions of furnaces that has a bodyportion provided with means for mounting the same on the metallicframework and that has a plurality of flanges thereon extending at anoblique angle to each other whereby refractory hanger members may bemounted on a row of said metallic bracket members in horizontallyextending rows, with the rows having the oblique relationship andstaggered rela tionship above referred to.

By the arrangement of the refractory bracket members in theiroverlapping staggered arrangement, the refractory wall forming membersprovide a fan end construction in which the face of the wall exposed tothe heat of the furnace is generally rounding or follows substantially aconvex curve that is of relatively short radius in spite of the factthat the refractory hanger members are interposed between the wallforming refractories exposed to the heat and the metallic mounting meanstherefor, thus preventing any appreciable transfer of heat: to themetallic mounting means from the wall forming refractories, while at thesame time providing a relatively sharp turn in the connecting wallportion between the vertical and horizontal walls above referred to.

Other objects and advantages of my invention will appear as thedescription of the drawings proceeds. I desire to have it understood,however, that I' do not intend to limit myself to the particular detailsshown or described, except as defined in the claims.

In the drawings:

Fig. 1 is a view partly in elevation and partly in sec tion, of myimproved fan end construction, a fragmentary portion of a vertical and ahorizontal wall between which said fan end construction is providedbeing shown therein.

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1.

Fig. 3 is a section taken of Fig. 1.

Fig. 4 is a perspective view of the metallic bracket memher or hangermember detached.

Fig. 5 is a fragmentary perspective view of a portion of the fan endconstruction, showing a plurality of the metallic hanger members withsome of the vertically extending refractory hanger members mounted inposition thereon and with one of the wall forming refractories shown inposition on said refractory hanger members.

Fig. 6 is a similar view, showing fragmentary portions of the metallichanger members and showing portions of two rows of staggered relativelyobliquely extending hanger members in position thereon, and showing someof the wall forming members in position on certain of said refractoryhanger members.

Fig. 7 is a similar fragmentary perspective view, showing some of therefractory hanger members of an additional horizontal row in position,and additional wall forming refractories in position, and

Fig. 8 is a similar perspective view, showing the addi tion of some ofthe refractory bracket members of the uppermost row or horizontallyextending refractory or substantially on the line 3-3 bracket members inposition and showing some of the wall forming refractories associatedwith said uppermost bracket members added to the refractory membersshown in Fig. 7.

Referring in detail to the drawings, my improved fan en'd'constructionis shown as being provided in a furnace structure that has a frameworkincluding a horizontal frame member 10, which is in the form of anI-beam having upper and lower flanges: 11 and 12, a horizontallyextending frame member 13 having lower flanges 14 and an upper flange onwhich the vertically extending frame member 15'and the horizontallyextending channelfrarne member 16are mounted.

The frame member 10 is connected with the frame member 13 by means oftheclip 17, it'being, of course, understood that therearea plurality oftheframe members 10 in a furnace structure ofthis character mounted onaplurality offframe members 13, asin the, structure shown in the abovereferred to Hosbein and Ellman Patent No. 2,387,663. The horizontally,extending top, wall, ofthe furnace is, shown as being constructedin thesame manner as in the above referred to patent, being suspendedfrom, theframe members 10 by meansof metal bracket members 18), which in turnsuspend refractory bracket members 19; and from. said refractory hangerbracket members. 19. are suspended the wall forming refractories. 20,.said refractory hanger bracket members 1'9-and refractory members 20,being of the. form shown in the, above referred to Patent No.- 2,387,663, and related to each other in the same manner as are saidrefractory bracket members and said refractory wall forming members insaid patent.

The channel member 16 corresponds to one of the channelmembers shown inthe co-pending application of Louis H..Hosbein and Louis Ellman, SerialNo. 787,740, 0

filedINovember 24, 1947, and now Patent No. 2,660,050, on Tile. BracketMounted Furnace Wall Construction, and has a rib or flange 21 extendingupwardly therefrom, on which the vertically extending bar 22 is mounted,as.we-ll.as a bracket 23, which is provided with suitable means for,supporting the refractory brackets24, which are of the same constructionas the hangers 19, and which support the wall forming refractories 25 ofthe vertical wall in a manner disclosed in detail in said application ofLouis H. Hosbein and Louis Ellmani Myimproved fan end construction isshown as being mounted between the horizontally extending top wallhaving the wallforrningrefractory members 20 and the verticallyextendingwall having the wall forming refractories 25, sectionally mounted andsupported in the manner above referred to. My improved fan endconstruction comprises aplurality of metallic hanger members 26, fromthe body portion of which extend a pair of laterally extending ears 27that are provided Withnotches or recesses 28 therein, one of said hangerbrackets being shown inFig. 4. Said recesses 28 accommodatetheupperflanges 11,0f frame'members 10 in the manner-sh wn in detailinFig 2 ofthe drawings,

Each: of said metallichanger members is also provided with a pair-.oflaterally extending cars 29, whichare provided with, notches or recesses30 to accommodate the lower flanges 12 of the frame members 10 in themanner illustratedinFig. 2. Eachof said metallic hanger membershas awebportion 31provided with openings through whichthe bolt 32' extends,said boltalso extending through anopening in the web portion of thel-beam 10 and when the .nut 33 is tightened on the bolt 32 it'will drawthe head- 34 of the bolt against the web portion 31 so that two adjacentmetal, hanger brackets 26' will be clamped to a framemember To) in theposition shown in the-drawings. Said hanger members are also providedwith laterally extending ears; 35 and 36 on each side thereof,respectively, that engage-the edges of theflanges 11 and 12 and serve asspacingmeans to hold the metallic hanger brackets 26in fixedposition onthe frame meme bers and in proper parallel relationship to each other.

Each of said metallic hanger members also has" a rearwardly extendingupper portion 37 that is of a hooklike character and which hooks overthe flange 14 of the frame member 13. Thus each of the hanger members 26serves not only as a hanger member for the refractories, but as meansfor connecting the frame members 13 and 10 in amanner similar to that ofthe clips 17 The web portion 31' has a reduced upper end portion 38,which hasa rearward extension 39 that serves as a, stiffening andopenended box-like portion at the lower end ofthe hanger member 26. Saidwalls 43 have upwardly inclined bottomedges 44 extending substantiallyparallel to the inclined walls 41, upwardly inclined edges 45'thatextend from the forward or inner ends of the edges 44; and downwardlyinclined edges 46 that extend from the wall 42 to the edges 45.

In the usual position in which themetallic bracket member 26 is used,the web portion 31 extends vertically, as do the ears 27 and29, whilethe cars 35 extend horizontally. The walls 43 are provided with flanges47 extending laterally therefrom and ordinarily extending horizontally,being parallel to the cars 35. Flanges 48.

are provided that extend outwardly from the walls 431 along the inclinedmarginal edges 45 and at an angle of substantially 60 to the flanges 47,the flanges 47 and 43 extending outwardly in opposite directions fromthe walls 43. Flanges 49 are also provided that extend inwardly from thewalls 43 toward each other along the marginal edges 44 of said. wall andbisect the angle between the flanges 47 and 48, extending at an angle of30 to both the flanges 47 and 48. The flanges 48 thus also extend atanangle of 30 to thefianges 40 on theupper end portion ofthe hanger member26.

Mountedon the upstanding portion having the .flanges 40. of. the hangermember 26 is the bracket 54?, which hasa slot; 51 in the outer or rearwall 52 thereofto accommodateithe web portionv 4,8, and whichhas a pair.ofparallel forwardly extending-walls 53 that engage the flanges 40'and'extend forwardlytherefrom, terminating in-flanges54 that areinwardly directed towardeach other. The topedge portion of. the web 31.limits downward. movement of the; bracket, member 50. and the fianges54,are, spaced from the flanges 40 when, said bracket meme berisflnitsfinalposition, as will be explained. below.

The refractory hanger members thatare. mounted on the; metallic hangermembers are the same in construc tion as the refractory hanger members19 and the re fractory bracket members 24, but in order to more clearlydistinguish the positions of, the various refractory hanger members inthe fan. end construction, the refractory hanger members: of the variousrows are. designated by the numerals 119, 219, 319 and. 419 for therefractory hanger members in the lowermost or first row, second row,third row and fourth or uppermost row, respec: tively. Each of therefractory hanger members 19, 1-19, 219, 3,19 and. 419- are providedwithlong, narrow body portions that are substantially rectangular inoutline. Said refractory hanger members-are the same in shape andconstruction as the refractory hanger members shown in the patent toHosbein and Ellman, No. 2,387,663, previously referred to.

Said refractory hanger members have flat rectangula-r inner andouterfacesSSand 56,- the inner, faces 55 conare a pair of parallel spacedwalls 43, which form a channeled or open bottomed stituting the bottomfaces of the block-like hanger mem bers in all positions thereof, exceptthat of the hanger members 419, and the outer faces 56 constituting theupper faces of said hanger members in all positions thereof, exceptthose of the hanger members 419. Said block-like members also have flatend faces 57 and 58 and flat side faces 59 and 60, thus providing planetop and bottom faces, plane end faces and plane side faces on saidblocks. The side faces 59 and 60 have a pair of aligned grooves 61 and62 therein, the grooves 62 being relatively short with respect to thegrooves 61. The short grooves 62 and the long grooves 61 on the faces 59and 60 lie opposite each other. Each of said hanger blocks is alsoprovided with pairs of recesses 63 therein that open into the side faces59 and 60 and into the end face 57 and pairs of similar recesses 64therein at the opposite ends of the blocks, opening into said side facesand end faces 58. There is thus a connecting portion 65 of the maximumthickness of the block provided between the recesses 63 and 64 and aconnecting portion 66 of the maximum thickness of the block providedbetween the long grooves 61 and the short grooves 62, and thus there isa portion of maximum thickness of the block extending from the lowerface 55 thereof to the upper face 56 thereof. The recesses 63 and 64have inclined wall portions 67 and 68 and the walls of the grooves 61and 62 are also inclined, as will be obvious from the drawings.

The lowermost row of refractory members 119 is mounted on the flanges 47of the metallic hanger members 26. Said refractory hanger members 119are interposed between two laterally adjacent metallic hanger members26, with a flange 47 of one of said members in engagement with a groove61 of one of said refractory hanger members 119 and the flange 47 of thenext adjacent metallic hanger member 26 in engagement with the oppositegroove 61 of the said refractory hanger member 119. The refractoryhanger members 219 are mounted each on one of the metallic hangermembers 26, with the flanges 49 on said metallic hanger members 26 inengagement with the opposite grooves 61 of said refractory hangermember, the upper ends of the flanges 49 being adapted to engage theupper end walls of the grooves 61 where the connecting wall portions 66are provided to limit downward movement of the refractory hanger members219 on the metallic hanger members 26. As the flanges 49 extend at anangle of 30 to the flanges 47 the hanger members 219 are mounted in aposition extending at an angle of 30 to that of the position of therefractory hanger members 119. It will also be noted upon reference tothe drawings that the hanger members 219 alternate with and arestaggered relative to the hanger members 119, and that the outer orupper end portions of said hanger members 119 and 219 overlap eachother, as will be obvious particularly from Fig. 1 and Fig. 6. Thehanger members 119 all are in a row in a direction transversely of thefan end portion, as is also true of the hanger members 219.

The refractory hanger members 319 are mounted on the metallic hangermembers 26 by engagement of the slots 61 in said hanger members 319,with the outwardly directed flanges 48 of adjacent metallic hangermembers 26 being thus mounted between adjacent hanger members 26 insubstantially the same manner as the refractory hanger members 119, andthus are located in positions in the row in which the same liesubstantially opposite the positions of the refractory hanger members119 in the row in which these lie and are in staggered relation and liebetween the refractory hanger members 219, with the outer cornerportions of the hanger members 219 and 319 overlapping in the mannershown in Fig. 1. As the flanges 48 extend at an angle of 30 to theflanges 49, the refractory hanger members 319 will extend at an angle of30 to the refractory hanger members 219 and at an angle of 60 to therefractory hanger members 119.

The lower outer corners of the refractory hanger members 319 are adaptedto engage an upper corner of each refractory hanger member 119 as shownin Fig. 1, but the weight of the hanger members is principally supportedby the flanges 48 with the upper end portions of the flanges 48 inengagement with the connecting walls 66 at the upper ends of the grooves61.

The recesses 63 and 64 in each of the refractory hanger members provideT-headed portions on the inner ends thereof, providing rib or flangeportions 69 on opposite sides of said hanger members that serve tosupport the wall forming refractories therefrom. The wall formingrefractories 20 are suspended from the refractory hanger members 19,having recesses that receive the flanges 69. Also one of the saidrefractories 20 is suspended from each of the refractory hanger members:119 in this manner, the flanges 69 opposite the recesses 64 being seatedin the recesses 70 in said wall forming members 20, as will be obviousfrom Figs. 6, 7 and 8. It will be also obvious from Figs. 6, 7 and 8that the wall forming refractories 20 are recessed as at 71 toaccommodate the connecting thickened wall portions between the recesses63 and 64. The refractory wall forming members 20 are provided withalternating interfitting ribs and grooves, as shown in Hosbein andEllman Patent No. 2,387,663, referred to above.

Also mounted on the refractory hanger members 119 are the wall formingrefractory members or blocks 72, which are provided with recesses 73,similar to the recesses 70, and with the recesses 74, similar to therecesses 71, said recesses 74 together with the recesses 71accommodating the connecting portions 65 and the recesses 73 eachreceiving a rib portion or flange portion 69 on one of said refractoryhanger members 119 to thus suspend said wall forming blocks 72 from saidrefractory hanger members 119. It will be noted that the wall portion ofboth the block 20 and the block 72 above the recesses and 73,respectively, is inwardly offset, this wall portion being indicated bythe numeral 75 on the block 20 and by the numeral 76 on the block 72,this being necessary to accommodate the connecting wall portion on eachof the refractory hanger members between the opposite recesses 63 andopposite recesses 64.

It will also be noted that the refractory blocks or wall forming members72 have the opposite faces 77 and 78 diverging from each other so thatsaid refractory wall forming members 72 gradually widen inwardly towardthe inner face or heat exposed face 81 of the blocks. Said refractorywall forming blocks 72 are also preferably provided with interengaginggrooves and ribs on the side faces 79 and 80 thereof that adjoin eachother in a similar manner to the interengaging ribs and grooves on themembers 20. The face 77 of each of said blocks extends perpendicularlyto the inner face 81 thereof, while the face 78 thereof extends at anoblique angle thereto, as will be obvious from Fig. 1. Each of saidrefractory wall forming blocks is also provided with a recess 82 thereinthat gradually tapers toward the outer end wall 83 of the block, andwhich is provided to accommodate the refractory hanger members of thenext higher row, as will be described below, said recesses 82 being ofsuch a size as to accommodate the relatively narrow wall portionsbetween opposite recesses 63 and opposite recesses 64 in the faces ofsaid hanger blocks.

A plurality of the refractory hanger members 119 is shown in position inFig. 5 and one of the wall forming refractories 20 is shown in positionthereon. In Fig. 6 a plurality of the refractories 72 are also shown inposition on the refractory hanger members 119 and a pair of refractoryhanger members 219 are shown in position, With some of the wall formingblocks 72 in position on said hanger members 219. Only certain of thelower blocks 72 are shown in position on the hanger members 219 so thatthe structure and arrangement of the refractory hanger members is moreclearly revealed, it

that there is an upper: and

being obvious from; Fig. 1

72 associated, with 21,-. lower, pair of wall. forming blocks the:refractory, hanger members 219... noted. upon reference. to Fig. 1 thatvthe, perpendicular sides of the wall forming blocks associated withthere fractory hanger members 219 are in adjacency, while the obliquelyextending sides 78. thereof are in engagementwith the correspondingobliquely extending sides 78 of the wall forming blocks carried by therefractory hanger membersv 119.- Also due to. the fact that the hangermembers 119 are associated, in the same manner with the blocks 72 as arethe refractory hanger members 219 with said blocks. of their respectiverows, the blocks 72.associated with the refractory hanger members 219,.are staggeredrelative to the, blocks 72, associated with the refractoryhanger members 119 or break joints therewith, aswillbe obvious fromFigs. 6 and 7. When the. refractory hanger members 219 are put inposition itwill. be obvious that the wall portions that separate therecesses: 64 opposite each other lie in, the recesses 82 in thewallforming blocks 72 that are mounted on the refractory hanger members 119;

The refractory wall forming blocks 72 that are mounted on the refractoryhanger members 319 are mounted thereon in the same manner as are therefractory blocks 72 on the refractory hanger members 219 and are thusstaggered or break joints with the wall forming blocks 72.mounted. onthe refractory hanger members 219, the perpendicular faces of therefractory wall; forming blocks '72. lying adjacent each other and theobliquely or inclined faces 78- thereof lying adjacentand in engagementwith the inclined or obliquely extending faces 78 of the uppermost,course of blocks 72 mountedon the refractory hanger members 219. Certainofthe Wall forming blocks 72 are shown in position on the refractoryhanger members 319 in Fig. 7. a

They refractory hanger members 419 have a lower course. of wall formingblocks 72 mounted thereon in the same manner as the lower courses ofwall forming blocks 72. are mounted on the refractory hanger members 219and 31?, but the refractory hanger members 419 are reversed in positionfrom the refractory hanger members 319, in thatinstead of the long slots61 being lowermost, these are uppermost. Accordingly the recesses 64 and63 are. reversedin position from those in the refractory hanger members219 and 319 and the projections. or flanges 69 opposite the recesses 64therein engage in. the recesses 73 in, the wall forming blocks 72 thatform the lower tier of blocks mounted on said refractory hanger members,4-19. However, the refractory wall forming blocks 72 are mounted withtheir, lower inclined faces 73 inengagementwith the inclined faces 78 oftheupper tieror wall forming blocks on the refr'actoryv hanger members31h and the perpendicular faces 77' thereof upwardly. Refractory wallforming blocks 20 are mountedon the refractory hanger members 419 on topofthewallforming members 72, and it will be noted from Fig. 8' that saidwall forming blocks 20 are slightly offset or staggered relativeto thewall fo-rrningblocks 72 so as to break, joints therewithand that thewall forming blocks '72. mounted on the refractory hanger members 41arestaggered relative to and break joints with the blocks 72 mounted on therefractory hanger members 319. It will also be notedv that the blocks 72mounted on the refractory hanger members 319. are in alignment with theblocks 72hr" the corresponding refractory hanger membcrs119 and that theblocks 72 on the refractory hanger members 419 are similarly related totheblocka 72 on the refractory hanger members 219.

' Refractory wall forming members 84 are provided for filling in betweenthe Wall forming members 25 mounted on the bracket members Maud therefractory wall formingmembers 2%,.these being supported on the saidwall forming members 21). Also refractory blocks 85 are provided to fillthe space between the refractory hanger It will, also. be.

members, 419: anda the. refractory brackets, 24.: and, prefer- -ably,,a. suitable. refractory cement filling, material. 86. is

provided betweenthe verticalwall portion and said. re.- fractor-ies. 8:4and 85..

It will be obvious that a fan, end construction is pro.- vided that basegenerally convexly curved or rounding wall connecting-the horizontal topwall and the vertical. wall of the furnace. structure shown herein;While the exposed face of the fan end construction is not trulyarcuateor smoothly curved, but is made upof a plurality of flat facesthat extend at relatively large angles to each other, the. surfacethusapproaches a convexly curved. or rounding surface, and. the saidrounding surface'is offa much smaller radius than would be possible toattain-if the refractory. hanger members were not arranged in staggered.relation to each other, as, if. such, staggered arrangement were notprovided, it. would be necessary to.

have the. hanger mmehersv corresponding to the hanger membersr219 in,corner to corner engagement with the refractory hanger, members 119, or.inother. words, these would have to assume a position substantially thatof' the refractory hanger members 319, except that these would have asmaller angular relationship to each other than do the refractory hangermembers 1-19 and 319. Oh-

viously this would throw the wall forming blocks 72' much. further awayfrom the metallic framework than is the case in myimproved fan endconstruction and would thus produce a fan end construction of a muchlarger radius of curvature than that shown herein. As a result, fewerrefractories have to be used both for hanger members and for wallforming members, and a more compact structure results.

What I" claim is:

1. A connecting refractory wall structure providing a.

rounding corner. between a pair of relatively angularly disposed"refractory furnace walls, comprising rectangular refractory hangermembers, means for mounting said' hanger members in overlapped,staggered relation and wall formingrefract'ories supported from saidhanger members. 2. A connecting refractory wall structure providing arounding corner between a pair of relatively angularly' disposedrefractory furnace walls, comprising horizontal rows of horizontallyspaced refractory hanger members, means for mounting adjacent hangermembers in overlapped, staggered relation andwall forming refractoriessupported.fromsaidhangermembers.

3. A connecting refractory'wall structure providing'ai rounding corner"between a pair of relatively angularly' disposedrefractory-furnacewalls, comprising duplicate rectangular refractoryhanger members, metallic hanger members having means for mounting saidrefractory hanger members in overlapped, staggered relation andwallforming refractories supported from said refractory hanger members.

4. A fan end construction for furnaces comprisinghorizontal-rowsof'rectangular; horizontally spaced refractory hanger members, means-formounting each of said'rows with the members thereof-extending at" anoblique angle to the members of an adjacent row and in overlapped,staggered relation thereto,- and inwardly wideningwall formingrefractories supported from the horizontallyadjacent hanger membersofeach of said rows.

5. In a fan end construction for furnaces, a metallic framework,metallic hanger members having body portions provided with means formounting the sameon said framework and having a plurality of inwardlyand out-; wardly extending rectilinear flanges thereon extending atoblique angles to each other, rectangular refractoryhangermembersmounted on said flanges in horizontally extending rows, thehanger members in each row being horizontally spaced, and inwardlywidening wall forming refractories supported on said refractory hangermembers.

6. In a fanend construction for furnaces, a metallic framework, metallichanger members having body portions providedwith means formounting thesame on said framework, said body portions having spaced walls thereonprovided with pairs of outwardly directed flanges thereon, the flangesof one pair extending at an oblique angle to the flanges of the otherpair, and provided with a pair of inwardly directed flanges extendingperpendicularly to the bisector of the angle between said pairs ofoutwardly directed flanges, refractory hanger members mounted on saidflanges in horizontally extending rows, and wall forming refractoriessupported on said refractory hanger members.

7. A metallic bracket for fan end constructions for furnaces having abody portion, paired recessed mounting ears therein, the ears of eachpair projecting laterally from opposed sides of said body portion intransverse alignment, paired spacing ears on said body portioncooperating with said mounting ears, spaced walls on said body portionextending perpendicularly to said ears, said walls having pairs ofoutwardly directed flanges thereon, the flanges of one pair extending atan oblique angle to the flanges of the other pair, and having a pair ofinwardly directed flanges extending perpendicularly to the bisector ofthe angle between said pairs of outwardly directed flanges, andupstanding bracket mounting means on the top end of said body portion.

References Cited in the file of this patent UNITED STATES PATENTS1,626,982 Strachota May 3, 1927 1,642,254 Liptak Sept. 13, 19271,666,284 Gilchrist Apr, 17, 1928 1,806,809 Lanyon May 26, 19311,807,408 Hosbein May 26, 1931 1,978,077 Doyle Oct. 23, 1934 2,011,701Anderson Aug. 20, 1935 FOREIGN PATENTS 477,131 Great Britain Dec. 22,1937

